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Contents
- Weather in January
- Weather in February
- Weather in March
- Weather in April
- Weather in May
- Weather in June
- Weather in July
- Weather in August
- Weather in September
- Weather in October
- Weather in November
- Weather in December
- Frequently asked questions
- Average temperature
- Average pressure
- Average wind speed
- Average humidity
- Average rainfall
- Average rainfall days
- Average snowfall
- Average snowfall days
- Average daylight
- Average sunshine
- Average sunshine days
- Average UV index
- Average cloud cover
- Average visibility
Weather in January
January, like December, is a freezing cold winter month in Delmar, Iowa, with temperature in the range of an average low of 13.3°F (-10.4°C) and an average high of 25.9°F (-3.4°C). January is the coldest month, with the temperature often reaching an average high of 25.9°F (-3.4°C) and an average low of 13.3°F (-10.4°C). Weather in January »
Weather in February
The last month of the winter, February, is also a subzero cold month in Delmar, Iowa, with an average temperature ranging between min 16.9°F (-8.4°C) and max 29.7°F (-1.3°C). The commencement of February notes an average high-temperature of a still subzero cold 29.7°F (-1.3°C), exhibiting little difference from the previous month. Weather in February »
Weather in March
The first month of the spring, March, is a frosty month in Delmar, Iowa, with temperature in the range of an average high of 44.6°F (7°C) and an average low of 29.8°F (-1.2°C). March signals a clear temperature escalation, with average high-temperatures advancing from February's subzero cold 29.7°F (-1.3°C) to a chilly 44.6°F (7°C). Weather in March »
Weather in April
April is a refreshing spring month in Delmar, Iowa, with an average temperature ranging between min 40.6°F (4.8°C) and max 56.7°F (13.7°C). A rise in the average high-temperature is observed during April, moving from a chilly 44.6°F (7°C) in March to a moderate 56.7°F (13.7°C). Weather in April »
Weather in May
The last month of the spring, May, is a pleasant month in Delmar, Iowa, with an average temperature fluctuating between 68.5°F (20.3°C) and 51.6°F (10.9°C). The shift from April to May is marked by an increase in the average high-temperature, moving from a refreshing 56.7°F (13.7°C) to an agreeable 68.5°F (20.3°C). Weather in May »
Weather in June
The first month of the summer, June, is a moderately hot month in Delmar, Iowa, with an average temperature fluctuating between 61.2°F (16.2°C) and 77.2°F (25.1°C). With the onset of June, Delmar's average high-temperature experiences a slight rise, moving from May's agreeable 68.5°F (20.3°C) to a warm 77.2°F (25.1°C). Weather in June »
Weather in July
July, like June, in Delmar, Iowa, is a moderately hot summer month, with an average temperature fluctuating between 80.2°F (26.8°C) and 63.7°F (17.6°C). July tends to be the warmest month, with temperatures averaging a daily high of 80.2°F (26.8°C) and a low of 63.7°F (17.6°C). Weather in July »
Weather in August
The last month of the summer, August, is also a moderately hot month in Delmar, Iowa, with temperature in the range of an average high of 79.3°F (26.3°C) and an average low of 61.3°F (16.3°C). Delmar indicates an average high-temperature of a still moderately hot 79.3°F (26.3°C) in August, showing minor variation from July's 80.2°F (26.8°C). Weather in August »
Weather in September
The first month of the autumn, September, is still a warm month in Delmar, Iowa, with an average temperature ranging between max 73.6°F (23.1°C) and min 54.5°F (12.5°C). As August transitions into September, Delmar sees a gentle drop in the average high-temperature, transitioning from 79.3°F (26.3°C) to a still warm 73.6°F (23.1°C). Weather in September »
Weather in October
October, like September, is another mild autumn month in Delmar, Iowa, with temperature in the range of an average low of 43.5°F (6.4°C) and an average high of 59.5°F (15.3°C). With October's arrival, Delmar sees a decrease in average high-temperatures, moving from a moderately hot 73.6°F (23.1°C) in September to a mild 59.5°F (15.3°C). Weather in October »
Weather in November
The last month of the autumn, November, is also a frosty month in Delmar, Iowa, with an average temperature ranging between min 31.6°F (-0.2°C) and max 45°F (7.2°C). The start of November signals a considerable reduction in the average high-temperature, receding from a moderate 59.5°F (15.3°C) in October to a frosty 45°F (7.2°C). Weather in November »
Weather in December
December, the first month of the winter in Delmar, is also a wintry month, with an average temperature varying between 32.7°F (0.4°C) and 22.3°F (-5.4°C). During the transition into December, Delmar observes a decrease in the average high-temperature, falling from a chilly 45°F (7.2°C) in November to a cold 32.7°F (0.4°C). Weather in December »
Updated: Jun 8, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What time of the year is the coldest?
In Delmar, January is the coldest month, with temperatures averaging a high of 25.9°F (-3.4°C) and a low of 13.3°F (-10.4°C).
What is the most humid month?
The most humid month is January, with an average relative humidity of 86%.
What is the driest month?
January is the month with the least rainfall. Rain falls for 5.4 days and accumulates 1.34" (34mm) of precipitation.
How much does it rain?
In Delmar, during the entire year, the rain falls for 143.3 days and collects up to 29.76" (756mm) of precipitation.
When does it snow?
Months with snowfall are January through April, October through December.
When does it snow the most?
January is the month with the most snowfall. Snow falls for 11 days and accumulates 5.2" (132mm) of snow.
How much does it snow?
Throughout the year, there are 40.2 snowfall days, and 17.48" (444mm) of snow is accumulated.
What is the month with the least sunshine?
January and February, with an average of 3.9h of sunshine, are months with the least sunshine.
What is the month with the lowest UV index?
The months with the lowest UV index are January and December, with an average maximum UV index of 1.
When is Daylight Saving Time (DST)?
On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts, and the time zone changes from CST to CDT. Daylight Saving Time ends Sunday, November 3. 2024, at 2:00 am, and the time zone reverts from CDT to CST.
What is the rainiest month?
The month with the most rainfall is May, when the rain falls for 18.7 days and typically aggregates up to 4.53" (115mm) of precipitation.
When it does not snow?
May through September are months without snowfall.
When are the longest days?
The month with the longest days is June, with an average of 15h and 12min of daylight.
What is the warmest month?
In Delmar, July is identified by the average highest temperatures, reaching a peak of 80.2°F (26.8°C) and a low of 63.7°F (17.6°C).
What month has the most sunshine?
July has the most sunshine of the year, with an average of 9.9h of sunshine.
When is the highest UV index in Delmar?
With an average maximum UV index of 6, July is the month with the highest UV index.
What is the least humid month?
With an average relative humidity of 74%, October is the least humid month.
What is the month with the shortest days?
December has the shortest days of the year, with an average of 9h and 12min of daylight.
Average temperature
Delmar, IA
The warmest month (with the highest average high temperature) is July (80.2°F).
The month with the lowest average high temperature is January (25.9°F).
The month with the highest average low temperature is July (63.7°F).
The coldest month (with the lowest average low temperature) is January (13.3°F).
Average pressure
Delmar, IA
- Average pressure in January:
30.13"Hg - Average pressure in February:
30.12"Hg - Average pressure in March:
30.08"Hg - Average pressure in April:
29.94"Hg - Average pressure in May:
29.95"Hg - Average pressure in June:
29.9"Hg
- Average pressure in July:
29.96"Hg - Average pressure in August:
29.97"Hg - Average pressure in September:
30.02"Hg - Average pressure in October:
30"Hg - Average pressure in November:
30.09"Hg - Average pressure in December:
30.1"Hg
The month with the highest atmospheric pressure is January (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.9"Hg).
Average wind speed
Delmar, IA
- Average wind speed in January:
10.2mph - Average wind speed in February:
10.3mph - Average wind speed in March:
10.1mph - Average wind speed in April:
10.5mph - Average wind speed in May:
8.9mph - Average wind speed in June:
7.7mph
- Average wind speed in July:
6.8mph - Average wind speed in August:
6.8mph - Average wind speed in September:
7.8mph - Average wind speed in October:
9.4mph - Average wind speed in November:
10.2mph - Average wind speed in December:
9.8mph
The windiest month (with the highest average wind speed) is April (10.5mph).
The calmest months (with the lowest average wind speed) are July and August (6.8mph).
Average humidity
Delmar, IA
The month with the highest relative humidity is January (86%).
The month with the lowest relative humidity is October (74%).
Average rainfall
Delmar, IA
- Average rainfall in January:
1.34" - Average rainfall in February:
1.38" - Average rainfall in March:
1.93" - Average rainfall in April:
3.46" - Average rainfall in May:
4.53" - Average rainfall in June:
3.86"
The wettest month (with the highest rainfall) is May (4.53").
The driest month (with the least rainfall) is January (1.34").
Average rainfall days
Delmar, IA
- Average rainfall days in January:
5.4 days - Average rainfall days in February:
5.3 days - Average rainfall days in March:
11.4 days - Average rainfall days in April:
16.6 days - Average rainfall days in May:
18.7 days - Average rainfall days in June:
17.1 days
- Average rainfall days in July:
16.4 days - Average rainfall days in August:
13.8 days - Average rainfall days in September:
11.6 days - Average rainfall days in October:
11.7 days - Average rainfall days in November:
8.4 days - Average rainfall days in December:
6.9 days
The month with the highest number of rainy days is May (18.7 days).
The month with the least rainy days is February (5.3 days).
Average snowfall
Delmar, IA
The month with the highest snowfall is January (5.2").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days
Delmar, IA
- Average snowfall days in January:
11 days - Average snowfall days in February:
9.8 days - Average snowfall days in March:
5.5 days - Average snowfall days in April:
1.7 days - Average snowfall days in May:
0 days - Average snowfall days in June:
0 days
- Average snowfall days in July:
0 days - Average snowfall days in August:
0 days - Average snowfall days in September:
0 days - Average snowfall days in October:
0.6 days - Average snowfall days in November:
3.3 days - Average snowfall days in December:
8.3 days
The month with the highest number of snowfall days is January (11 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight / Average sunshine
Delmar, IA
- Average daylight in January:
9h and 3min - Average daylight in February:
10h and 4min - Average daylight in March:
12h and 0min - Average daylight in April:
13h and 2min - Average daylight in May:
14h and 4min - Average daylight in June:
15h and 1min
- Average daylight in July:
14h and 5min - Average daylight in August:
13h and 5min - Average daylight in September:
12h and 3min - Average daylight in October:
11h and 1min - Average daylight in November:
9h and 5min - Average daylight in December:
9h and 1min
The month with the longest days is June (Average daylight: 15h and 12min).
The month with the shortest days is December (Average daylight: 9h and 12min).
- Average sunshine in January:
3h and 5min - Average sunshine in February:
3h and 5min - Average sunshine in March:
6h and 2min - Average sunshine in April:
7h and 3min - Average sunshine in May:
8h and 2min - Average sunshine in June:
9h and 3min
- Average sunshine in July:
9h and 5min - Average sunshine in August:
9h and 5min - Average sunshine in September:
9h and 1min - Average sunshine in October:
5h and 1min - Average sunshine in November:
5h and 1min - Average sunshine in December:
4h and 1min
The month with the most sunshine is July (Average sunshine: 9h and 54min).
The months with the least sunshine are January and February (Average sunshine: 3h and 54min).
Average sunshine days
Delmar, IA
- Average sunshine days in January:
16.5 days - Average sunshine days in February:
14.5 days - Average sunshine days in March:
14.8 days - Average sunshine days in April:
11.5 days - Average sunshine days in May:
10.2 days - Average sunshine days in June:
10.4 days
- Average sunshine days in July:
11.1 days - Average sunshine days in August:
15.2 days - Average sunshine days in September:
16.3 days - Average sunshine days in October:
16.9 days - Average sunshine days in November:
18.6 days - Average sunshine days in December:
17.2 days
The month with the most sunshine days is November (18.6 days).
The month with the least sunshine days is May (10.2 days).
Average UV index
Delmar, IA
The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January and December (UV index 1).
Average cloud cover
Delmar, IA
The month with the most cloud cover is January (Cloud cover 60).
The months with the least cloud cover are August and September (Cloud cover 31).
Average visibility
Delmar, IA
The months with the highest visibility are February, March, April, May, June, August, September, October, November and December (6mi).
The months with the lowest visibility are January and July (5mi).
Delmar, Iowa, USA
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